autotest: Remove preserved-specific checks from KernelCrashServer

Remove the part that was preserved specific (checking if the area was
cleared and looking for the preserved file.

BUG=chromium-os:12059
TEST=Ran the test

Change-Id: Ia44784b38bab8e5d9c33538d91b2a24e443b24c0
Signed-off-by: Sergiu Iordache <sergiu@chromium.org>
Reviewed-on: http://gerrit.chromium.org/gerrit/5937
Reviewed-by: Ken Mixter <kmixter@chromium.org>
Reviewed-by: Michael Krebs <mkrebs@chromium.org>
Reviewed-by: Mandeep Singh Baines <msb@chromium.org>
1 file changed